40257076631 has 4 divisors (see below), whose sum is σ = 40264605264. Its totient is φ = 40249548000.

The previous prime is 40257076579. The next prime is 40257076637. The reversal of 40257076631 is 13667075204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40257076631 is a prime.

It is a super-2 number, since 2×40257076631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40257076637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3756290 + ... + 3766991.

It is an arithmetic number, because the mean of its divisors is an integer number (10066151316).

Almost surely, 2^40257076631 is an apocalyptic number.

40257076631 is a deficient number, since it is larger than the sum of its proper divisors (7528633).

40257076631 is an equidigital number, since it uses as much as digits as its factorization.

40257076631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7528632.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 40257076631 in words is "forty billion, two hundred fifty-seven million, seventy-six thousand, six hundred thirty-one".